Manufacturing die for 3225 Kovar ring

Abstract

The invention discloses a manufacturing die for a 3225 Kovar ring. The manufacturing die for the 3225 Kovar ring comprises a stepper die, wherein the stepper die comprises an upper die holder 1 and alower die plate 2, and the upper die holder is sequentially provided with a location convex die, a one-for-three convex die assembly and a one-for-four convex die assembly in the stepper direction ofthe stepper die; the one-for-three convex die assembly comprises three rows of one-for-three convex die insert groups, and the one-for-four convex die assembly comprises four rows of one-for-four convex die insert groups; the lower die plate is sequentially provided with a location concave die, a one-for-three concave die assembly and a one-for-four concave die assembly in the stepper direction ofthe stepper die, and the one-for-three concave die assembly comprises three rows of one-for-three concave die insert groups; and the one-for-four concave die assembly comprises four rows of one-for-four concave die insert groups. The die completes a one-for-seven yield in a one-for-three step and a one-for-four step, and completes production for seven products in one process and in a nine-stage stepper manner, so that the efficiency can be increased by 40%. During punching for an inner hole, the punching is carried out in twice, a part with a length of 0.05mm, of the periphery, is reserved after the first-time punching for the inner hole, and then the part with the length of 0.05mm is punched off, so that the punching accuracy of less than 0.005mm, for the inner hole, is ensured.

Description

technical field [0001] The invention relates to the field of Kovar ring manufacturing, in particular to a 3225 Kovar ring manufacturing mold. Background technique [0002] Such as Figure 5 , Figure 6 As shown, the specification 3225 Kovar ring is an insert that must be used in the base of the quartz crystal resonator at present. Its function is to be brazed around the ceramic base and welded with the metal cover to form a sealed cavity. At present, the sales volume of this product is growing rapidly with the demand of the quartz crystal resonator market. [0003] Progressive die (also known as continuous die, skip die) refers to the die in which the press completes multiple processes at the same time in several different positions in one stroke. The blanking parts are formed step by step in the progressive die, and continuous forming is a process method with concentrated processes, which can make various processes such as edge trimming, incision, grooving, punching, plas...

AI Technical Summary

Problems solved by technology

[0004] Kovar ring is a ring-shaped product formed by stamping with a precision progressive die using a composite metal strip as material. The material utilization rate in the existing production of Kovar ring is only 15-20%, and the accuracy of punching concentricity is required to be less than 0.0075mm, warpage less than 0.01mm, therefore, designing a mold that can improve material yield and production efficiency has become an urgent problem to be solved

Images